92 APPENDIX 



F = Stripes and Bands; a long marking, when parallel (or nearly 

 so) to the major axis of the body, leg, or wing, is called a 

 Stripe ; when lying at right angles (or nearly so) it is called 

 a Band. For " frontal stripe " see A, III (I). 



O= Cells of the wing [sec the following Table]; the rib-like 

 nervures are termed Veins; these divide the area of the 

 wing into more or less twelve compartments called Cells or 

 Areolets. 



V = Longitudinal Veins [see the following Table] ; two groupings 

 within the margin can be recognised ; the principal veins 

 of the Fore Region are numbered, 1,2, and 3, whilst those 

 of the Hind Region are numbered, 4, 5, 6 and 7 respective- 

 ly ; some have branches, a, b, c, etc., when sections (separ- 

 ately referred to) may have index numerals attached. 



X = Cross-yeins [see the following Table]; one very significant 

 X-vein termed X, 4 (or the Discal X) in the middle of the 

 wing connects the longitudinal V, 4 to the V, 3, which are 

 thus to be identified even in very abnormal patterns. 



The cross-veins and cells are symbolised by having attached to the 

 letters X and O respectively the indicative and qualifying figures 

 and letters belonging to the V upon which they rest, that is to say, 

 the V (or part of V) which is the lower boundary. 



